Your facts are a bit out of whack.
Pre-war, Iran had good relations with Qatar and Oman. Also with Pakistan. And Armenia. Their current relations with Iraq are also OK.
They have problems with Saudis, Bahrain, UAE - exactly the countries with extensive US military bases. No surprise there.
And Iran has not (prior to being attacked) attacked any of their neighbours.
The only two neighbouring countries Israel does not have problems with are heavily-bought Jordan and Egypt (Israel still attacked them prior to Camp David accords).
To any non-ideologically blind person it is obvious who is the one stirring the instability in the middle east.
You